Separable fastener.



G. R. NETTLETON.

SEPARABLE FASTENER.

APPLICATION FILED OCT. 6, I916.

Patented Feb. 6, 191?.

GEORGE R. NETTLETOIT, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE W. 85E.

T. FITCH C0., F NEW/V HAVEN,

CONNECTIGUT, A CORPORATION.

SEPARABLE FASTENER.

Specification of Letters Patent.

Patented Feb. 6, 13117.

To all whom it may concern:

Be it known that I, GEORGE E. Nnrrnn- TON, a citizen of the UnitedStates, residing at New Haven, in the county of New Haven and State ofConnecticut, have invented a new and useful Improvement in SeparableFasteners; and I do hereby declare the following, when taken inconnection with the accompanying drawings and the characters ofreference marked thereon, to be a full, clear, and exact description ofthe same, and which said drawings constitute part of this application,and represent, in-

Figure 1 a top or plan view of a separable fastener constructed inaccordance with my invention.

Fig. 2 a side view of the same.

Fig. 3 a sectional view on the line 33 of Fig. 1.

Fig. 4 a sectional of Fig. 1. v

Fig. 5 a similar view with the lever in its open position.

Fig. 6 an end view of the post, detached.

Fig. 7 a plan view of the casing with the lever removed.

Fig. 8 a side view of the same.

Fig. 9 a perspective View of the lever, detached.

Fig. 10 a plan view of the washer used connection with a separablefastener. This invention relates to an improvement in separablefasteners, and while the device is particularly adapted for use as acurtain fastener, it is obviously adapted for use for other purposes.

The object of this invention is to provide a fastener particularlyadapted for fasten ing curtains and pockets of automobiles, which iscomparatively flat and easily engaged and disengaged, and with theminimum number of parts; and the invention consists in the constructionhereinafter de scribed and particularly recited in the claims.

In carrying out my invention I employ a casing 11 preferably struck upfrom sheet metal with integral prongs 12 by which it may be secured inplace. In the upper face of the shell is a clearance opening 13 into oneend of which projects a finger 1 L formed integral with the casing, andat the side of the opening opposite the finger the metal is depressed toform a wide groove 15. The lever 16 is formed on opposite sides withview on the line H thickness of the inwardly projecting arms 17 theedges 18 of which are turned inward, forming segmental flanges.Preferably and as shown in Fig. 3 of the drawings, the arms will beslightly bowed. This lever is formed with a slot 19 corresponding inwidth to the width of the finger 1% which finger is curved through theslot so as to hinge the lever in the casing. The lever is formed with afinger-piece 20 corresponding in width to the width of the groove 15into which it is set, the depth of the groove corresponding to the metalfrom which the lever is formed s that when the lever is in the closedposition it will stand flush with the upper face of-the casing, the saidfinger projecting slightly beyond the outer wall of the casing. Byslightly bowing the sides of the arms of the lever the said arms formsprings which will yield to permit the lever to be turned in its closedposition through the opening 13 in the casing, and yet when turned intothe closed position the bowed sides of the arms will tend to hold thelever in the closed position. The casing is applied to a. curtain 21 orother device by forcing the prongs 12 through the curtain and upsettingthem over a washer 22 corresponding in shape to the shape of the casingand formed with a clearance hole 26, the portion of the curtain inclosedby the casing being cut away in the usual manner. This fastener is usedin connection with a post 23 formed on opposite sides near its upperends with grooves 2i forming a head 25 the lower edges of the projectingportions of the head being curved as clearly shown in Figs. -l and 5 ofthe drawings. The post may be driven, screwed or riveted in position sothat it will project to proper cX- tent to be engaged by the flanges 18of the lever. To secure the fastener the lever is opened as shown inFig. 5 of the drawings, and the device set over the post which extendsthrough the hole 21 in the washer and into the casing 11. The lever isthen turned down into its closed position as shown in Fig. i of thedrawings, and as it is turned down the flanges 18 of the arms 17 enterthe grooves 24 of the post and engage with the lower edges of the headthereof so as to draw the fastening device closely against the portionin which the post is mounted, and as before stated, the sides of thearms when extended being slightly greater than the width of the opening13. In the closed position the finger-piece 20 of the lever stands inthe groove 15 and slightly projects beyond the end of the casing so asto be conveniently lifted when it is desired to disconnect the fastener.

It will be noted that the fastener complete, with the post and washer,comprises only four separate pieces, the casing, lever and washer beingreadily struck from sheet metal, thus enabling the fastener to beproduced at a very low cost.

Obviously one of the arms on the lever might be omitted, althoughpreferably two arms will be employed.

I claim 1. A separable fastener comprising a casing provided with meansfor securing it in position, said casing formed in its outer face withan opening, a lever pivotally connected with the casing and formed onopposite sides with arms adapted to extend through the said opening intothe casing,

combined with a post independent of the casing with which said arms areadapted to engage.

2. A separable fastener comprising a casing, means for securing it inposition, said casing formed in its outer face with an opening, a leverpivotally connected with the casing and formed on opposite sides witharms adapted to enter the casing through the opening in the top thereof,said arms each formed with inwardly projecting curved flanges, and apost independent of the casing with which said lever is adapted toengage.

3. A separable fastener comprising a casing provided with means forsecuring it in place, said casing formed in its outer face with anopening, a lever pivotally connected with the casing and formed onopposite sides with arms extending through said opening, the edges ofsaid arms formed with inwardly projecting curved flanges,

combined with a. post independent of the casing having a head beneathwhich said flanges are adapted to pass. I

A separable fastener comprising a casing provided with means forsecuring it in place, said casing formed in its outer face with anopening, a lever pivotally connected with the casing and formed onopposite sides with side walls adapted to enter the casing through theopening in the face thereof, said side walls slightly bowed in avertical plane, combined with a post independent of the casing withwhich said lever is adapted to engage.

5. A separable fastener comprising a. casing provided with. means forsecuring it in place, said casing formed in its outer face with anopening, an integral finger projecting into the said opening from oneend thereof, a lever corresponding in width to the width of saidopening, said lever formed with a slot through which said fingerextends, and whereby said lever is pivotally connected with the casing,said lever formed on opposite sides with inwardly projecting arms, and apost independent of the casing with which said arms are adapted toengage when the lever is in the closed position.

6. A separable fastener comprising a casing provided with means forsecuring it in position, said casing formed in its outer face with anopening, a lever pivotally connected with the casing and formed with anarm adapted to extend through the said opening into the casing, combinedwith a post independent of the casing with which said arm is adapted toengage.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

eno. R. NETTLETON.

Witnesses I CLARA L. WEED, MALooLM P. NICHOLS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

